摘要:
The present disclosure provides a sample holder assembly for a laser flash apparatus for measuring a thermal conductivity of a pebble-bed, the assembly comprising: a tubular sample container configured to be mounted on a sample carrier tube for the laser flash apparatus, wherein the sample container has open top and bottom; a bottom disc disposed in the sample container to block the open bottom of the sample container and configured for delivering a laser from a laser flash unit of the apparatus to a pebble-bed; the pebble-bed packed on the bottom disc to a predetermined thickness; and a top disc disposed on the pebble-bed and in the sample container to block the open top of the sample container and configured for receiving heat from the pebble-bed to transfer the heat upward.
摘要:
The invention relates to the field of thermonuclear fusion and can be used in devices for securing a blanket module to the vacuum vessel of a fusion reactor. A device for securing a blanket module to a fusion reactor vacuum vessel comprises a flexible support in the form of rods that are mounted between two flanges, a displacement compensator, and a threaded fastening member in the form of a locknut with a male thread. The displacement compensator is mounted on the flange of the flexible support which is oriented towards the module, said flange having a concave spherical surface, and is rigidly connected to the blanket module, wherein the displacement compensator comprises a locking screw and a supporting sleeve, which are pivotally interconnected, a spacer sleeve, and a coupling sleeve with a spherical protuberance. The spacer sleeve is movably connected to the locking screw and has a convex spherical surface and a concave spherical surface, which form a pivot connection to the flange of the support and to the spherical protuberance of the coupling sleeve respectively. The coupling sleeve is rigidly connected to a stop surface of the locknut. The technical result of the present invention is an increase in the permissible amount of tension force in the threaded joint between the flexible support and the module, which increases the load-support capacity of the device, prevents possible weakening of the threaded joint by virtue of self-locking ability, and provides for self-compensation of angular and axial displacements occurring as the module is mounted on the vacuum vessel.
摘要:
This heat receiving tile formed of CFC is provided with a heat receiving block formed of a carbon fiber composite material and having a through hole, a cooling pipe inserted through the through hole of the heat receiving block, a buffer material provided to an outer periphery of the cooling pipe, a first brazing portion joining an inner surface of the through hole with an outer surface of the buffer material, a second brazing portion joining an inner surface of the buffer material with an outer surface of the cooling pipe, and a material discontinuous portion extending from a heat receiving surface of the heat receiving block up to the outer surface of the cooling pipe over a full length of the heat receiving block in an axis direction of the through hole. The heat receiving tile formed of CFC, which does not include a defect to decline a cooling efficiency such as a peeling between members configuring the heat receiving tile and a crack of the members, can be provided.
摘要:
This heat receiving tile is provided with a heat receiving block 11 formed of a carbon material and having a through hole; a cooling tube 16 formed of a copper alloy and fitted in the through hole of the heat receiving block; a cylindrical material of interlayer 14 disposed between the heat receiving block and the cooling tube; and brazing material layers 13, 15 inserted between the material of interlayer and the heat receiving block and between the material of interlayer and the cooling tube, and also a slit 21 which penetrates the heat receiving block and the material of interlayer over the thickness of the heat receiving block and reaches the cooling tube on the back side of the heat receiving surface. It can provide a heat receiving tile formed of a carbon fiber composite material for high heat flux component such as a first wall of a nuclear fusion reactor, which is produced by metallurgically joining a carbon material with a copper alloy and has a higher cooling efficiency than conventional heat receiving tiles.
摘要:
The invention relates to a component coupling means for deliberate and controllable heat transfer from or to a component (3), which can be heated by an external and/or internal heat source and which is arranged adjacent to a cooler (7). The component coupling means comprises a carrier plate (1), on which at least one first element for spacing (2a) is arranged in such a way that a component (3) arranged on the element for spacing and the carrier plate (1) together with the element for spacing (2a) are able to form a first defined cavity (4a). If necessary, said cavity can be evacuated or filled with a fluid medium or flow can pass through said cavity, whereby the heat transfer or the heat loss from the component can be controlled in a simple manner.